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FAIR VALUE - Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Fair Value Disclosures [Abstract]      
Changes in valuation inputs or changes in assumptions $ 0   $ 0
Unobservable inputs reconciliation, transfers 0 $ 0  
Other Assets      
Embedded Derivative [Line Items]      
Embedded derivative, fair value $ 10,400,000